Strand twister



Spt. 11, 1923.

A. .L/DRAPIERA STRAND TWISTER 2 Sheets-Sheet 1 -V Filed. Nov. 23

' @Rowman ASA J. DRAPER,

STRAND OF OGDEN, UTAH.

TWISTER.

Application led November 23, 1922. Serial No. 602,829.

To all who/m, it 'may concer/nf: c 'Be it known that I, ASA J. DRAPER,4la. citizen of the United States residing at Ogden, in the county oflVeber and State of Utah, have invented certain. new and usefulImprovements in Strand Twisters; and I do declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame,

Y My invention relates to improvements in devices for twisting togethera plurality of strands of cord or wire for the: purpose of forming arope or cable. The device is'of the general nature of prior deviceshaving a plurality of circumferentially spaced ro tatable hooks fortwisting the `strands so that they will later twist about each other.

It is the object of the present invention however to improve upon theconstruction of prior devices of the same character, to such an extentthat an extremely simple and inexpensive device is provided, yet onewhich will be highly efficient and durable. v

lVith the Jforegoing in view, the invention residesin the novel subjectmatter hereinafter described and claimed, the description beingsupplemented by the accompanying drawings.

Figure 1 is a perspective view of a strand twister constructed inaccordance with my invention, showing the manner of twisting a number ofstrands together.

Figure 2 is a vertical sectional view as in? dicated by line 2-2 of Fig.1.

Figure 3 is a vertical sectional View at right angles to Fig. 2, asindicated by line 3-3 thereof.

Figure 4 is a sectional view as indicated by line 4-4 of Fig. 1.

Figure 5 is a perspective view of one of the strand twisting hooks.

In the drawings above briefly described, the numeral 1 designates a flatfront plate which is preferably of substantially circular form. beingprovided however with a depending eXtension 2 by means of which it maybe rigidly secured to an appropriate support. The openings 3 which Ihave shown in this plate are principally to s'ave metal and decreaseweight, but attention is directed to the fact that the spout of an oilcan may be inserted through these openings for oiling the pinions yet tobe described.

Plate l is formed with a relatively large central opening 4 vand with aplurality smaller circumferentially spaced openings 5 which areequidistant from said central opening. The plate is v`preferably stampedfrom ya single piece of metal of suitable gage c and allfof.theppenings'niay be formed in ysaid plate lby. a single stampingoperation, p

at the time of cutting the plate the desired shape. The openings 5Vrotatably receive the shanks ofga vplurality of twisting hooks 6,'therear ends of said hookshaving yfiat heads17 ,which are preferablyalthough not necessarily: of the square form shown, These heads 7 aresnugly received in ysimilarly shaped openings 8 in a plurality of flatpinionsr9 which contact with the rear side of the front platel and itwill thus be seen that rotation of said pinions will rotate theseveralhooks totwist strands in the required manner..v -4 Y The front end of abearing sleeve 10 is snugly received inthe centralopening l4 of thefront platel 1,'this sleeve being provided Vwith' lan outstanding flatflange 11 whichis so that said rear plate may rotate uponsaid f sleeve,the two plates 1 and 12 being spaced apart sufficiently to preventbinding the pinions 9 and the heads 7, by means of the flange 11.

I provide common mea-ns 'for securing the bearing sleeve 10 snugly intheopening for 4 of the front plate 1 and for preventing the rear plate 12from moving rearwardly ofl' of the bearing sleeve. I prefer to pass anordinary bolt 14 through the sleeve 10, this bolt being providedwith awasher 15 between its head 16 and the front plate 1 and having anotherwasher 17 which is clamped against the rear end of the sleeve 10 by thenut 18. The space between the flange 11 and the washer 17 is slightlygreater than the thickness of the disk l2, whereby the latter may freelyrotate. The peripheral portion of this back plate or disk 12 is providedwith a fiat internal gear ring 19 which is secured thereto by anypreferred means such as rivets 20, said gear ring meshing with thepinions 9 for rotating all of the latter and the hooks 6, when the backplate 12 and said gear ring are rotated, for inmay beeasily andinexpensively manufactured and marketed,y yet it will beV efficientstance by means of a suitable handle 2l. This handle may well be securedto the plate or disk 12 by bolts or rivets 22, one of which A preferablypasses through the gear ring 19 as disclosed in Fig. 2, therebyassisting in securing it to the plate l2. All parts so far described arestamped from suitable gage sheet metal with the exi ception of thebearing sleeve l0 and the hooks 6. The sleeveand its flangell arepreferably turned, while the hooks andv their {'hea'ds 6 may be dropforged. 'Byemploying a construction which maybe constructed in thesewell known ways, that is principally of the stampings and forgings, the'device and durable.

y'Preferably used in connectionl withV the features above described, isa suitable vthreader or strand guide 23 which may'well be stamped from ametal plate. 'The strands to be twisted are suitably engaged withnotches 24 of this device and with `the hooks 6V and the threader 23 isthen held against rotation while the handle 2,1 is operated tosimultaneously rotate the hooks G in the same direction. This twists theseveral groups of strands together and when the desired` ably followed.However, within the scope -aiiixed my signature.

oit the invention as claimed, numerous minor changes may be made;

I claim:

. l. A strand twister comprising a flat rigid front plate having aplurality of circumferential'ly spaced openings, a plurality of twistinghooks having shanks rotatable in said openings, the rear ends oitsaid'shanks having fiat heads bearing against the rear side of saidfront plate, flat pinions contacting with said rear side of said frontplate and having central openings non-rotatablyv receiving 'said heads,arotatable back plate engaging the rear sides of said pinions and saidheads land having an internal gear ring meshing with said'pinions, andmeans rotatably inountingsaid back plate on-said front plate.

2. A" strand twister comprising a rigid liront plate having asubstantially central" opening and circumferentially spaced openingsequidistant from said central opening, twisting hooks having lShanksrotatable in said circumferentially spaced openings,l fiatpinions'connected with the rear ends of saidA 4Shanks and contactingwith the vrear side of said front pla-te, a bearing sleeve snuglyreceivedin said central opening of said front vplate and having anoutstanding flange contacting with the rear side of said plate, saidflange and A pinions being of substantially -uniform thickness, arotatable back plate Vhaving a central opening receiving therearendfot'v said bearing sleeve, said back plate having an internal gearring meshing with said pinions, and a bolt passing through said bearingsleeve, said bolt securing said sleeve to said front plate andVpreventing removal of said back plate from said sleeve.

In testimony whereof I have hereunto ASA J. DRAPER.

